body,h1,h2,h3,h4,h5,h6,p,ul,ol,dl,dd{
	margin: 0;
	padding: 0;
}

ul{
	list-style: none;
}
input{
	border:0;
}
.clear:after{
	content: "";
	display: block;
	clear: both;
}
.box{
	width: 500px;
	margin:30px auto;
	padding:30px 40px;
	border:1px solid #ddd;
	box-shadow: 0 0 10px #bbb;
	box-sizing: border-box;
}
.box h2{
	text-align: center;
	color:#666;
	font-size: 22px;
	line-height: 40px;
}
.box form{
	padding:15px 0;
}
.box form ul li{
	display: flex;
	height: 40px;
	line-height: 40px;
	margin-bottom: 15px;
}
.box form ul li input{
	border:1px solid #ddd;
	height: 38px;
	padding:0 10px;
	line-height: 38px;
	flex:1;
	box-sizing: border-box;
}
.box form ul li label{
	display: block;
	width: 120px;
}
.box form ul li label span{
	color:red;
	padding-right:10px;
}
.box form button{
	width: 100%;
	border:none;
	height: 40px;
	background-color: green;
	color:#fff;
}